concerned about antarctica because of the impact it has and the practical consequences. it affects the ocean around it and therefore the fisheries upon which we rely. >> reporter: some of these studies have been going on for a few years. some only a month. those involved hope the project will provide important information to help in the fight against global climate change. take nakajima, nhk world, hobart, tasmania. >>> time now to get a check on the weather. people on the streets in tokyo are watching their step as they get around today. meteorologist sayaka morery explains. >> hi there. on monday we saw very heavy snow in tokyo. because we are not used to heavy snow, people are having trouble walking on icy roads. let's take a look at some video from tokyo. people on japan's pacific coast woke up to frigid temperatures today. tokys snowas meltg. but when temperatures plummeted the slush froze. icy roads are making it difficult for people to commute. and the cold isn't helping. tokyo's snow is still four centimeters deep. so quite dangerous situation out here. snow is a